Model: 031C975-4

Worm Wheel Gear

Properties:

Body Style
Plain, solid
Attachment Method
Mounting hole
Pitch Diameter
1.8750 inches
Teeth Quantity
30
Face Type
Concave
Bore Style
W/counterbore counter bore, second end
Mounting Hole Thread Series Designator
Unc axially through hub, first end
Mounting Hole Thread Series Designator
Unc axially through hub, second end
Mounting Hole Thread Size
0.190 inches axially through hub, first end
Mounting Hole Thread Size
0.190 inches axially through hub, second end
Mounting Hole Type And Quantity
4 threaded axially through hub, second end
Mounting Hole Type And Quantity
6 threaded axially through hub, first end
Outside Diameter
0.043 inches
Tooth Direction
Right
Mating Thread Lead Quantity
4
Pressure Angle
20.0000 degrees
Helix Angle
21.7998 degrees
Distance Between Body Face And Protruding Hub End
1.094 inches second end
Distance Between Body Face And Protruding Hub End
1.341 inches first end
Face Width
0.125 inches
Bore Diameter
0.623 inches counter bore, second end
Counterbore Depth
0.388 inches counter bore, second end
Counterbore Diameter
1.260 inches counter bore, second end
Hub Style Designator
1 step second end
Hub Style Designator
3 steps first end
End Length
0.281 inches first end
End Length
0.624 inches second end
End Diameter
1.566 inches first end
End Diameter
1.969 inches second end
First Step Length
0.185 inches second end
First Step Length
0.625 inches first end
First Step Diameter
1.575 inches first end
First Step Diameter
2.211 inches second end
Second Step Length
0.188 inches first end
Second Step Diameter
1.813 inches first end
Third Step Length
0.266 inches first end
Third Step Diameter
1.625 inches first end
Material
Copper alloy
Style Designator
Protruding hubs
NSN
3020-00-088-4593
Part Number
031C975-4
Description
Gear,worm Wheel
CAGE
95210

A gear, cylindrical in form, with spiral teeth designed to mesh with the thread forms of a gear (1), worm. See also gear, antibacklash, worm wheel.

Part 031C975-4 NSN 3020-00-088-4593

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05468
FIIG:
A27300
Concept No.:
1
App. Key:
AK
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
197337
UFC:
96690
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8483409000
  • SITC: 74840
  • End Use: Industrial machines, other
  • NAICS: 333612
  • USDA: 1

Freight Class: Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements entered separately

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